diff --git a/src/common/audio_stream.cpp b/src/common/audio_stream.cpp
index e06d93cae..5af2a425d 100644
--- a/src/common/audio_stream.cpp
+++ b/src/common/audio_stream.cpp
@@ -263,7 +263,7 @@ void AudioStream::ReadFrames(SampleType* samples, u32 num_frames, bool apply_vol
 
 void AudioStream::EnsureBuffer(u32 size)
 {
-  DebugAssert(size <= m_buffer_size);
+  DebugAssert(size <= (m_buffer_size * m_channels));
   if (GetBufferSpace() >= size)
     return;